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TRANSISTOR_THERMOMETER

2016-05-06 18:38  
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TRANSISTOR_THERMOMETER
Base bias of germanium transistor varies linearly with temperature over wide ranee, at about 0.0014 v d-c per deg F. Meter is connected to measure base bias and calibrated in degrees for household and outdoor tempera tures. Range switch S1 covers 0 to 100°F in ten steps, and S2 extends range 30°in both directions.-L. E. Barton, Measuring Temperature with Diodes and Transistors, Electronics, 35:18, p 38-40.